6 files changed, 22 insertions, 29 deletions
diff --git a/text_recognizer/data/base_dataset.py b/text_recognizer/data/base_dataset.py
index 4318dfb..c26f1c9 100644
--- a/text_recognizer/data/base_dataset.py
+++ b/text_recognizer/data/base_dataset.py
@@ -29,6 +29,7 @@ class BaseDataset(Dataset):
         super().__init__()
 
     def __attrs_post_init__(self) -> None:
+        # TODO: refactor this
         if len(self.data) != len(self.targets):
             raise ValueError("Data and targets must be of equal length.")
 
diff --git a/text_recognizer/data/emnist.py b/text_recognizer/data/emnist.py
index d51a42a..2d0ac29 100644
--- a/text_recognizer/data/emnist.py
+++ b/text_recognizer/data/emnist.py
@@ -46,7 +46,7 @@ class EMNIST(BaseDataModule):
     EMNIST ByClass: 814,255 characters. 62 unbalanced classes.
     """
 
-    train_fraction: float = attr.ib()
+    train_fraction: float = attr.ib(default=0.8)
     transform: Callable = attr.ib(init=False, default=T.Compose([T.ToTensor()]))
 
     def __attrs_post_init__(self) -> None:
diff --git a/text_recognizer/data/iam_extended_paragraphs.py b/text_recognizer/data/iam_extended_paragraphs.py
index 886e37e..58c7369 100644
--- a/text_recognizer/data/iam_extended_paragraphs.py
+++ b/text_recognizer/data/iam_extended_paragraphs.py
@@ -13,23 +13,24 @@ from text_recognizer.data.iam_synthetic_paragraphs import IAMSyntheticParagraphs
 @attr.s(auto_attribs=True)
 class IAMExtendedParagraphs(BaseDataModule):
 
-    train_fraction: float = attr.ib()
+    augment: bool = attr.ib(default=True)
+    train_fraction: float = attr.ib(default=0.8)
     word_pieces: bool = attr.ib(default=False)
 
     def __attrs_post_init__(self) -> None:
         self.iam_paragraphs = IAMParagraphs(
-            self.batch_size,
-            self.num_workers,
-            self.train_fraction,
-            self.augment,
-            self.word_pieces,
+            batch_size=self.batch_size,
+            num_workers=self.num_workers,
+            train_fraction=self.train_fraction,
+            augment=self.augment,
+            word_pieces=self.word_pieces,
         )
         self.iam_synthetic_paragraphs = IAMSyntheticParagraphs(
-            self.batch_size,
-            self.num_workers,
-            self.train_fraction,
-            self.augment,
-            self.word_pieces,
+            batch_size=self.batch_size,
+            num_workers=self.num_workers,
+            train_fraction=self.train_fraction,
+            augment=self.augment,
+            word_pieces=self.word_pieces,
         )
 
         self.dims = self.iam_paragraphs.dims
diff --git a/text_recognizer/data/iam_lines.py b/text_recognizer/data/iam_lines.py
index e45e5c8..705cfa3 100644
--- a/text_recognizer/data/iam_lines.py
+++ b/text_recognizer/data/iam_lines.py
@@ -34,6 +34,7 @@ SEED = 4711
 PROCESSED_DATA_DIRNAME = BaseDataModule.data_dirname() / "processed" / "iam_lines"
 IMAGE_HEIGHT = 56
 IMAGE_WIDTH = 1024
+MAX_LABEL_LENGTH = 89
 
 
 @attr.s(auto_attribs=True)
@@ -42,11 +43,12 @@ class IAMLines(BaseDataModule):
 
     augment: bool = attr.ib(default=True)
     fraction: float = attr.ib(default=0.8)
+    dims: Tuple[int, int, int] = attr.ib(init=False, default=(1, IMAGE_HEIGHT, IMAGE_WIDTH))
+    output_dims: Tuple[int, int] = attr.ib(init=False, default=(MAX_LABEL_LENGTH, 1))
 
     def __attrs_post_init__(self) -> None:
+        # TODO: refactor this
         self.mapping, self.inverse_mapping, _ = emnist_mapping()
-        self.dims = (1, IMAGE_HEIGHT, IMAGE_WIDTH)
-        self.output_dims = (89, 1)
 
     def prepare_data(self) -> None:
         """Creates the IAM lines dataset if not existing."""
diff --git a/text_recognizer/data/iam_paragraphs.py b/text_recognizer/data/iam_paragraphs.py
index bdfb490..9977978 100644
--- a/text_recognizer/data/iam_paragraphs.py
+++ b/text_recognizer/data/iam_paragraphs.py
@@ -41,6 +41,8 @@ class IAMParagraphs(BaseDataModule):
     augment: bool = attr.ib(default=True)
     train_fraction: float = attr.ib(default=0.8)
     word_pieces: bool = attr.ib(default=False)
+    dims: Tuple[int, int, int] = attr.ib(init=False, default=(1, IMAGE_HEIGHT, IMAGE_WIDTH))
+    output_dims: Tuple[int, int] = attr.ib(init=False, default=(MAX_LABEL_LENGTH, 1))
 
     def __attrs_post_init__(self) -> None:
         self.mapping, self.inverse_mapping, _ = emnist_mapping(
@@ -49,11 +51,6 @@ class IAMParagraphs(BaseDataModule):
         if self.word_pieces:
             self.mapping = WordPieceMapping()
 
-        self.train_fraction = train_fraction
-
-        self.dims = (1, IMAGE_HEIGHT, IMAGE_WIDTH)
-        self.output_dims = (MAX_LABEL_LENGTH, 1)
-
     def prepare_data(self) -> None:
         """Create data for training/testing."""
         if PROCESSED_DATA_DIRNAME.exists():
diff --git a/text_recognizer/data/iam_synthetic_paragraphs.py b/text_recognizer/data/iam_synthetic_paragraphs.py
index 00fa2b6..a3697e7 100644
--- a/text_recognizer/data/iam_synthetic_paragraphs.py
+++ b/text_recognizer/data/iam_synthetic_paragraphs.py
@@ -2,6 +2,7 @@
 import random
 from typing import Any, List, Sequence, Tuple
 
+import attr
 from loguru import logger
 import numpy as np
 from PIL import Image
@@ -33,19 +34,10 @@ PROCESSED_DATA_DIRNAME = (
 )
 
 
+@attr.s(auto_attribs=True)
 class IAMSyntheticParagraphs(IAMParagraphs):
     """IAM Handwriting database of synthetic paragraphs."""
 
-    def __init__(
-        self,
-        batch_size: int = 16,
-        num_workers: int = 0,
-        train_fraction: float = 0.8,
-        augment: bool = True,
-        word_pieces: bool = False,
-    ) -> None:
-        super().__init__(batch_size, num_workers, train_fraction, augment, word_pieces)
-
     def prepare_data(self) -> None:
         """Prepare IAM lines to be used to generate paragraphs."""
         if PROCESSED_DATA_DIRNAME.exists():